英文化学字谜
题目
英文化学字谜
6.Element found in white jewelry and also used when a wire must be sealed in a glass tube as it expands and contracts at about the same rate as glass.(8个字母)
7.Element used as a dye and as a tincture solution in medicine.(6个字母)
9.Element used in electroplating and also in coins of small denominations.(6个字母)
6是铂,7是碘,9是什么啊
答案
Nickel镍
举一反三
已知函数f(x)=x,g(x)=alnx,a∈R.若曲线y=f(x)与曲线y=g(x)相交,且在交点处有相同的切线,求a的值和该切线方程.
我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
最新试题
热门考点